HARRISBURG — A freshman state lawmaker from Philadelphia secretly pleaded guilty six months ago to a felony charge that she helped a member of a politically connected family embezzle money from a health clinic, a federal court document unsealed Wednesday shows.

The document appeared on the court docket of Democratic Rep. Leslie Acosta, who was accused of aiding in the theft of hundreds of thousands of dollars from the publicly funded Philadelphia clinic where she once worked.

Acosta pleaded guilty March 4 in U.S. District Court to a felony charge of conspiracy to commit money laundering. But the plea agreement was placed under seal at that time.

The case against Acosta was brought last November, also under seal, and did not come to light until a report last week by The Philadelphia Inquirer.

Acosta is running unopposed for a second term in the Nov. 8 election.

Warren said Acosta will not resign, despite Democratic Party pressure to step down and take her name off the ballot so the another candidate can run.

Under state law, a felon must leave office upon sentencing.